/Engine/Source/Runtime/Engine/Classes/Animation/MorphTarget.h
Factory function to define type of FinishBuildData needed
virtual [TUniquePtr](API\Runtime\Core\Templates\TUniquePtr)< [FFinishBuildMorphTargetData](API\Runtime\Engine\Animation\FFinishBuildMorphTargetData) > CreateFinishBuildMorphTargetData() const